(2017). -. , 7(2), 311-321. doi: 10.22059/geope.2017.229525.648308
. "-". , 7, 2, 2017, 311-321. doi: 10.22059/geope.2017.229525.648308
(2017). '-', , 7(2), pp. 311-321. doi: 10.22059/geope.2017.229525.648308
-. , 2017; 7(2): 311-321. doi: 10.22059/geope.2017.229525.648308


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